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United Air Lines Flight 629

1955 in Colorado1955 murders in the United States20th-century mass murder in the United StatesAccidents and incidents involving the Douglas DC-6Airliner accidents and incidents in Colorado
Airliner bombingsAirliner bombings in the United StatesAviation accidents and incidents in the United States in 1955Explosions in 1955Longmont, ColoradoMass murder in 1955MatricidesNovember 1955 events in the United StatesUnited Airlines accidents and incidentsUse American English from April 2020Use mdy dates from April 2020Weld County, Colorado
6609 UAL DC 6 NorthRampStapletonDEN
6609 UAL DC 6 NorthRampStapletonDEN

United Air Lines Flight 629, registration N37559 and dubbed Mainliner Denver, was a Douglas DC-6B aircraft that was blown up on November 1, 1955, by a dynamite bomb placed in the checked luggage. The explosion occurred over Longmont, Colorado, United States, at 7:03 p.m. local time, while the airplane was en route from Denver to Portland, Oregon, and Seattle, Washington. All 39 passengers and 5 crew members on board were killed in the explosion and crash.Investigators determined that John Gilbert Graham was responsible for bombing the airplane in a bid to kill his mother as revenge for his childhood and to obtain a large life insurance payout. Within fifteen months of the explosion, Graham—who already had an extensive criminal record—was tried, convicted, and executed for the crime.

Excerpt from the Wikipedia article United Air Lines Flight 629 (License: CC BY-SA 3.0, Authors, Images).

United Air Lines Flight 629
State Highway 66,

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Latitude Longitude
N 40.200141666667 ° E -104.9561 °
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State Highway 66 (County Road 30)

State Highway 66
80542
Colorado, United States
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6609 UAL DC 6 NorthRampStapletonDEN
6609 UAL DC 6 NorthRampStapletonDEN
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